JPH0328738B2 - - Google Patents
Info
- Publication number
- JPH0328738B2 JPH0328738B2 JP57205345A JP20534582A JPH0328738B2 JP H0328738 B2 JPH0328738 B2 JP H0328738B2 JP 57205345 A JP57205345 A JP 57205345A JP 20534582 A JP20534582 A JP 20534582A JP H0328738 B2 JPH0328738 B2 JP H0328738B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- control loop
- phase
- optical scanning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 37
- 238000001514 detection method Methods 0.000 claims description 12
- 230000004044 response Effects 0.000 claims description 11
- 230000005855 radiation Effects 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 4
- 230000010363 phase shift Effects 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 20
- 230000008859 change Effects 0.000 description 10
- 238000012937 correction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
Landscapes
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8105347A NL8105347A (nl) | 1981-11-26 | 1981-11-26 | Inrichting voor het optisch aftasten van een schijfvormige registratiedrager. |
| NL8105347 | 1981-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58100241A JPS58100241A (ja) | 1983-06-14 |
| JPH0328738B2 true JPH0328738B2 (enrdf_load_stackoverflow) | 1991-04-22 |
Family
ID=19838451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57205345A Granted JPS58100241A (ja) | 1981-11-26 | 1982-11-22 | 光学走査装置 |
Country Status (13)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8105346A (enrdf_load_stackoverflow) * | 1981-11-26 | 1983-06-16 | ||
| DE3347879C2 (de) * | 1983-07-09 | 1986-07-31 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Lesevorrichtung zum optischen Abtasten von auf einem beweglichen plattenförmigen Träger aufgezeichneten Informationen |
| DE3324861C2 (de) | 1983-07-09 | 1986-02-13 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Lesevorrichtung zum optischen Abtasten von auf einem bewegten plattenförmigen Träger aufgezeichneten Informationen |
| JP2565485B2 (ja) * | 1984-09-14 | 1996-12-18 | オリンパス光学工業株式会社 | 光学的記録再生装置 |
| DE3500671A1 (de) * | 1985-01-11 | 1986-07-17 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Lesevorrichtung zum optischen abtasten von auf einem beweglichen plattenfoermigen traeger aufgezeichneten informationen |
| JPH064414Y2 (ja) * | 1986-03-10 | 1994-02-02 | パイオニア株式会社 | トラツキング制御装置 |
| JP2681933B2 (ja) * | 1987-07-24 | 1997-11-26 | 松下電器産業株式会社 | 記録再生装置 |
| DE3732941A1 (de) * | 1987-09-30 | 1989-04-20 | Thomson Brandt Gmbh | Geraet zur wiedergabe von daten |
| US4967404A (en) * | 1988-12-05 | 1990-10-30 | Eastman Kodak Company | Focus/tracking servo automatic gain control for optical recording |
| NL9200808A (nl) * | 1992-05-06 | 1993-12-01 | Philips Electronics Nv | Optische schrijf- en/of leesinrichting. |
| JP3092756B2 (ja) * | 1992-07-24 | 2000-09-25 | ソニー株式会社 | 光デイスク装置 |
| US7522480B2 (en) | 2001-01-25 | 2009-04-21 | Dphi Acquisitions, Inc. | Digital tracking servo system with multi-track seek with an acceleration clamp |
| KR20060115356A (ko) * | 2003-10-06 | 2006-11-08 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 광학 디스크 드라이브와 렌즈의 위치를 제어하는 방법 |
| TWI292905B (en) * | 2005-06-20 | 2008-01-21 | Mediatek Inc | Control circuit of optical storage device and method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7315419A (nl) * | 1973-11-10 | 1975-05-13 | Philips Nv | Inrichting voor het uitlezen van een schijfvor- mige registratiedrager. |
| US3932700A (en) * | 1974-02-04 | 1976-01-13 | Zenith Radio Corporation | Focus tracking registration for optical reproducing systems |
| AR205839A1 (es) * | 1974-09-30 | 1976-06-07 | Mca Disco Vision | Servodisposicion para recorrer opticamente y leer simultaneamente un canal de informacion almacenado en un disco de video |
| NL182258C (nl) * | 1976-01-28 | 1988-02-01 | Philips Nv | Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestructuur. |
| DE2724917A1 (de) * | 1977-06-02 | 1978-12-14 | Bosch Gmbh Robert | Einrichtung und schaltungsanordnung zur spurabtastung einer videoplatte |
| US4337534A (en) * | 1979-04-18 | 1982-06-29 | Discovision Associates | Solid state electro-optical track follower array |
| NL7904724A (nl) * | 1979-06-18 | 1980-12-22 | Philips Nv | Optische aftastinrichting met fokusseerstelsel. |
| DE3038650C2 (de) * | 1979-10-12 | 1983-05-19 | Universal Pioneer Corp., Tokyo | Vorrichtung zum Wiedergeben der von einer Videoplatte gelesenen Information |
| JPS6048809B2 (ja) * | 1979-10-16 | 1985-10-29 | パイオニアビデオ株式会社 | 情報読取装置におけるトラッキングサ−ボ引込装置 |
-
1981
- 1981-11-26 NL NL8105347A patent/NL8105347A/nl not_active Application Discontinuation
-
1982
- 1982-02-19 US US06/350,448 patent/US4471477A/en not_active Expired - Lifetime
- 1982-11-19 DE DE19823242785 patent/DE3242785A1/de active Granted
- 1982-11-22 JP JP57205345A patent/JPS58100241A/ja active Granted
- 1982-11-22 GB GB08233237A patent/GB2110434B/en not_active Expired
- 1982-11-23 IT IT24387/82A patent/IT1153661B/it active
- 1982-11-23 AU AU90801/82A patent/AU551544B2/en not_active Ceased
- 1982-11-23 DK DK522082A patent/DK159695C/da not_active IP Right Cessation
- 1982-11-24 ES ES517633A patent/ES517633A0/es active Granted
- 1982-11-25 CA CA000416423A patent/CA1193724A/en not_active Expired
- 1982-11-25 BE BE0/209568A patent/BE895140A/fr not_active IP Right Cessation
- 1982-11-26 FR FR8219878A patent/FR2517154A1/fr active Granted
-
1986
- 1986-01-16 HK HK30/86A patent/HK3086A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DK522082A (da) | 1983-05-27 |
| DK159695B (da) | 1990-11-19 |
| GB2110434A (en) | 1983-06-15 |
| JPS58100241A (ja) | 1983-06-14 |
| AU9080182A (en) | 1983-06-02 |
| US4471477A (en) | 1984-09-11 |
| IT8224387A0 (it) | 1982-11-23 |
| NL8105347A (nl) | 1983-06-16 |
| CA1193724A (en) | 1985-09-17 |
| IT1153661B (it) | 1987-01-14 |
| FR2517154A1 (fr) | 1983-05-27 |
| FR2517154B1 (enrdf_load_stackoverflow) | 1984-12-28 |
| ES8308463A1 (es) | 1983-08-16 |
| AU551544B2 (en) | 1986-05-01 |
| IT8224387A1 (it) | 1984-05-23 |
| DE3242785C2 (enrdf_load_stackoverflow) | 1991-06-20 |
| BE895140A (fr) | 1983-05-25 |
| GB2110434B (en) | 1985-05-01 |
| DE3242785A1 (de) | 1983-06-01 |
| HK3086A (en) | 1986-01-24 |
| ES517633A0 (es) | 1983-08-16 |
| DK159695C (da) | 1991-04-15 |
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